Perhaps you should try some spelling variations:
luc ngan » luc nganh, luc nhan, luat ngan
tu sach » thu sach, su sach, te sach
ty nang » ky nang, ty hang, ly nang
hieu ve » hieu va, hieu van
cau luc » cau truc, cau phuc
hang vi » hang va, hanh vi, hang di
ca tren » cau tren, cu tren, la tren
ve cau » ke cau, va cau, ve cac
x hoi » xa hoi, o hoi, x ho
vi ca » vit ca, li ca, va ca

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((ty nang) OR (ty xang)) x hoi. hieu ve cau luc ngan hang vi ca tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ty nang) OR (ty xang)) x hoi. hieu ve cau luc ngan hang vi ca tren".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ty nang) OR (ty xang)) x hoi. hieu ve cau luc ngan hang vi ca tren*.